132 - Seventh Supplement to Dana’s Mineralogy. 
peg p. 500, I].—Under the penne of Homichlin, Breithaupt has de- 
scribed an ore from Plauen in Voigtland (B. u. H. Zeit., xvii, 385, 424, and xviii, 65 
a 
FeS*=Iron 22°3, copper 48:2, — 30: 5, hein 7 nay ta the composition given 
by Genth for the panacens y associated with kupferpecherz and malachite, 
Other localities are, Pasdeaieche near Lichtonby rg in avaria, Duc y of Hesse 
near 2 cageeeatle and at Breitenstein near Viedenkopf, Duchy of Nassa Binge bie 
lah Kupfe erberg in Silesia, Johanngeorgenstadt, Lauterbach i Hartz, 
Rheinbreitenbach on the Rhine, Quadmerget in Algeria, Chili at sae Se end To- 
Jap 
Baryres [p. 366, IT, V, Met iy brachydome 3-% has been observed by E. J. 
copes. fe ina hay “gfe crystal e Museum of the University of Toronto (Cana- 
Pine ore = (1 ae a bac: 4h monometric mineral from Binnen valley contains, ac- 
Voom Min. bse’ for 1856, 57, p. 174): 
* a 18: 98 oak g 
according to which the ratio for the “ma oni: 8: a... iis 
identical with enargite airman in crystallizati 
BiexvE wy 45, II, aA "s2 brown blende from near Burbach in the Siegen dis- 
trict Stas e8 ed ©, Schnabe 1 (Pogg., ev, 144) ZnS 70°45, FeS 12°59, insol. resid, 16°96 
==5. 
iti Tp. om —G. J. Brush has analyzed anew the boltonite of a 
bate Stirred Or, ‘Suni 8 gi that nig eats oa is chrysolite. He has also shown 
that the viata, of von Hauer, and the ments of Kenngott based upon it, are 
wrong. He'o tained (this Jeacs xxvii, 3 95)— 
g Al ign. 
42° 82 54:44 1 41 0" 85 i. 0°76=100°34 
It is therefore a van pure tt et Sed enn a variety of the species not Me 
found elsewher =6—6'5. G=321. Color prada but fragments almost 
colorless og "nea ccmpganee Cease very in one direction. The 
crystals ar dded in a limestone gangue, and the suns of them are often 
rectangu 
aa ee 
Brewsrotive [p. 471].—R. T. Simmlen has page a paper (Pogg., cv, att 
acco’ 
liquid carbonic acid expands between 32° and 86° F. 45 per cent. In the former 
per degree is 0°832, in the latter 0833. The index of refraction of the 
Brewstoline, slenediog to Brewster: is 1:1106 for a specimen in a Siberian amethyst, 
and 11311 es "er in a Brazilian topaz, or less than the number for yee (be 385); 
and although the exact number for carbonic ge has ees been observed, it is stated 
by Davy and Fa to be less than that of water. 
Brocwantrre [p. 391].—Brochantite, pet to F, Sandberger (Pogg., cv, hd 
occurs in Semel song i chalco og te lena and chalybite, malachite 
phane. An analysis by H. Risse affo seer Gu 678, Greene” 
chlorine, corresponding to the formula Cu75? 
Catamive [p. 313, IT].—Analysis of the vito ela ein tm Se 
tander in Spain, be ty 0. 1 (Foes, ey, 144): 
23°74 66-25 ai tr. 884=9941, G.=3-42. 
